<?php

/**
 * @file
 * Views handler: Product weight field.
 */

/**
 * Returns a formatted weight value to display in the View.
 */
class uc_product_handler_field_weight extends views_handler_field_numeric {

    /**
     * Overrides views_handler::option_definition().
     */
    function option_definition() {
        $options = parent::option_definition();

        $options['format'] = array('default' => 'uc_weight');
        return $options;
    }

    /**
     * Overrides views_handler::options_form().
     */
    function options_form(&$form, &$form_state) {
        parent::options_form($form, $form_state);

        $options = $this->options;

        $form['format'] = array(
            '#title' => t('Format'),
            '#type' => 'radios',
            '#options' => array(
                'uc_weight' => t('Ubercart weight'),
                'numeric' => t('Numeric'),
            ),
            '#default_value' => $options['format'],
            '#weight' => 1,
        );

        // Change weight and dependency of the previous field on the parent numeric ones
        $weight = 2;
        foreach (array('set_precision', 'precision', 'decimal', 'separator', 'prefix', 'suffix') as $field) {
            $form[$field]['#process'] = array('views_process_dependency');

            if (is_array($form[$field]['#dependency'])) {
                $form[$field]['#dependency'] += array('radio:options[format]' => array('numeric'));
                $form[$field]['#dependency_count'] = count($form[$field]['#dependency']);
            } else {
                $form[$field]['#dependency'] = array('radio:options[format]' => array('numeric'));
            }

            $form[$field]['#weight'] = ++$weight;
        }
    }

    /**
     * Overrides views_handler_field::render().
     */
    function render($values) {
        if ($this->options['format'] == 'numeric') {
            return parent::render($values);
        }

        if ($this->options['format'] == 'uc_weight') {
            return uc_weight_format($values->{$this->field_alias}, $values->{$this->aliases['weight_units']});
        }
    }

}
